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Finding the Fourth Proportional to 369,357.42, 553,839.21 and 191,685.54

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Solution

The fourth proportional to 369,357.42, 553,839.21 and 191,685.54 is: 287,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,357.42 : 553,839.21 = 191,685.54 : x
  2. Step 2: Convert to fraction form
    369,357.42/553,839.21 = 191,685.54/x
  3. Step 3: Cross multiply
    369,357.42x = 553,839.21 × 191,685.54
  4. Step 4: Simplify right side
    369,357.42x = 106,162,968,042.02
  5. Step 5: Solve for x
    x = 106,162,968,042.02/369,357.42
  6. Step 6: Final answer
    x = 287,426.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.